Pure maple syrup is a natural food. Composed mainly of sucrose, fructose, and glucose, the maple syrup is a source of minerals, with only two tablespoons providing about 5% of the daily recommended intake of calcium, 7% of iron, and 37% of zinc. The zinc in pure maple syrup is recognized as a factor in energy metabolism and tissue formation.

Organic Composition of Maple Syrup Carbohydrates Calories Organic Acids Amino Acid Vitamins Minerals
Sucrose 88-99 %          
Hexoses 0-11 %          
Other sugars Trace          
*Maple Syrup   252/100g        
*Corn Syrup   295/100g        
*Honey   304/100g        
*Molasses   252/100g        
Malic     0.141 %      
Citric     0.015 %      
Succinic     0.012 %      
Primary Amines       Trace    
Phenolic Compounds       Trace    
Niacin         276 mg/L  
Pantothenic Acid (B5)         600 mg/L  
Riboflavin (B2)         60 mg/L  
Folic Acid         Trace  
Pyridoxin         Trace  
Biotin         Trace  
A         Trace  
Potassium-K           1300-3900 ppm
Calcium-Ca           400-2800 ppm
Magnesium-Mg           12-360 ppm
Sodium-Na           0-6 ppm
Phosporus-P           79-183 ppm
Iron-Fe           0-36 ppm
Zinc-Zn           0-90 ppm
Copper-Cu           0-2 ppm
Tin-Sn           0-33 ppm

Source: Morselli,M.F. 1975 Nutritional Value of Pure Maple Syrup. Maple Syrup Digest 14 (2):12
*Comparison with other sugars (calories)